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O’Donnell’s publicist and a spokesman for the Oprah Winfrey Network say the host of “The Rosie Show” told her studio audience about the engagement Monday during a commercial break. The Emmy Award-winning talk show host’s new program debuted in September. She tapes in Winfrey’s former Chicago studio.

Rounds is a 40-year-old headhunter for an information technology company. O’Donnell is a mother of four and was previously married. She and former partner Kelli Carpenter publicly wed in San Francisco in 2004, two weeks after the mayor authorized granting marriage licenses to same-sex couples. The licenses were later voided by the California Supreme Court.